This is also an early piece I build up from the twelve tone row developed by Fritz Heinrich Klein. I guess it’s most famous use was by Alban Berg in his Lyrische Suite from 1925. I played this with an old out of tune toy harmonium that was found on the dump and recorded it with a 60’s Grundig microphone my mom bought for me in a rag shop. I played every Intervall in long periods so that the beating of the frequencies could develop as long as necessary. The whole piece is one movement through the row in forward and backward motion at the same time. With the tritone marking the middle of the piece, my idea was to play all possible complementary intervalls after each other in different combinations.